bbPress alerts

Hi guys,
I have a forums site though WordPress and bbPress and would like to know if the feature stated below is possible or hopefully created.
Hopefully it’s possible for there an alerts button in the menu bar that shows them recent replies to subscribed topics on a page.
What I need is for every time someone has replied to a topic they are subscribed to, in the menu bar the alerts link will have an icon with how many alerts (unread) eg (2) in an icon. This would require the alerts page too.